Graduate Nursing Department, University of Colorado Colorado Springs, 1420 Austin Bluffs Parkway, Colorado Springs, CO 80918, United States.
Prev Med. 2013 Nov;57(5):708-11. doi: 10.1016/j.ypmed.2013.07.004. Epub 2013 Jul 13.
To evaluate the effects of a theory-based physical activity and healthy eating intervention aimed at reducing stroke risk factors among overweight/obese and sedentary older adults.
Between 12/2009-1/2011, participants (n=69) were randomly assigned to an 8-week group motivational intervention or biweekly newsletters by mail. Physical activity (blinded pedometer, 7-day recall) body composition, theoretical mediator, and dietary (24-hour recall) variables were measured at pre-test and post-test. The physical activity and dietary outcomes are reported.
For outcome measures, the follow-up was 90% for the intervention group (n=29) and 91% for the control group (n=34) for this sample. Statistically significant differences in the 7-day physical activity self-report were noted at post-test in the intervention group. The dietary measures were not statistically significant at post-test; however, the intervention group increased the quantity of vegetable servings.
Limited efficacy testing was supported for a combined physical activity-dietary intervention, framed by a wellness-motivation theory, and designed to reduce stroke risk factors in older adults who are sedentary and overweight/obese. Limitations were identified and recommendations for additional research provided.
评估一项基于理论的体力活动和健康饮食干预措施对超重/肥胖和久坐的老年人群降低中风风险因素的效果。
在 2009 年 12 月至 2011 年 1 月期间，参与者（n=69）被随机分配到 8 周的小组动机干预组或通过邮件接受双周通讯组。在预测试和后测试时测量体力活动（盲法计步器，7 天回忆）、身体成分、理论中介变量和饮食（24 小时回忆）变量。报告体力活动和饮食结果。
对于本样本，干预组（n=29）和对照组（n=34）的随访率分别为 90%和 91%。在干预组后测试时，7 天体力活动自我报告的测量指标有显著差异。饮食测量指标在后测试时无统计学意义；但是，干预组增加了蔬菜的食用量。
在理论基础上，为减少久坐和超重/肥胖的老年人的中风风险因素，制定了结合体力活动和饮食的干预措施，并以健康动机理论为框架，得到了有限的有效性测试支持。本研究还确定了一些局限性，并提出了进一步研究的建议。
